[Geirskogul]

I'm running into a problem with endless "attempt to index a nil value" messages in the console when using this routine.  However, it's odd because it works fine on one of my accounts but not the other two.  I've uninstalled/reinstalled Pierce and the entire Minion application but this doesn't resolve it.

Further description of the errors (I have opening on, AoE, Smart AoE, Smart Jaws, Flaming Arrow, DoTs, CDs, Buffs, B.Voice, Ballad, Paeon, Requiem, Swift, and Blunt selected in the mini-menu leaving the others blank) and WM on Auto.

1)  On the bot that works, it opens with Hawk's Eye, Blood for Blood, Raging Strikes, then executes fantastically all the expected abilities.

2)  On the bot that doesn't work, it opens with Straight Shot, Heavy Shot, etc (the nil error occurs immediately and spams).  It never casts any buffs, Flaming Arrow, Blunt Arrow, Barrage, Empyreal arrow, but it DOES cast sidewinder and Bloodletter.

3)  The only difference between these three characters is that on the bot that works, Blood for Blood is a cross-class ability while for the two that don't work, Blood for Blood is not selected (because it's not unlocked).  Unchecking "buffs" and "cooldowns" so it doesn't use those doesn't fix the error however.

Any ideas?

I had the same issue you described and the same error in console. I had all necessary cross class abilities, however—still was experiencing that error. So I don't think it has anything to do with having them slotted or not.
Try toggling high performance mode on/off and disabling ACR, then run a normal skill profile. Re-enable ACR and see if it works. That fixed it for me, still not sure what was causing it though.